A) \[{{t}_{1}}={{t}_{2}}\]
B) \[{{t}_{1}}<{{t}_{2}}\]
C) \[{{t}_{1}}>{{t}_{2}}\]
D) \[{{t}_{1}}\ge \,\,{{t}_{2}}\]
Correct Answer: B
Solution :
[b] When a body is thrown up, its velocity goes on decreasing. Air resistance is smaller. When a body falls down, its velocity goes on increasing. Air resistance is larger \[{{t}_{2}}\] increases.
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